How to get toddler to nap 😴

Our 2 yr old is still in his crib, just a week and half ago he learned how to fully climb out. With our daughter putting a sleep sack on worked and bought us time till she mentally understood how to stay in bed which was only a couple of months. But he can climb out even with the sleep sack on and naps have been non existent. Which okay one could argue he doesn’t need one. But even my daughter still does at 4. And there is no keeping him in his room unless I physically sit in his room or if he’s in a car or ironically at a lunch table 🤣and they will just run back and forth playing. No amount of disciplining is helping here. He is just to young to understand it seems like. And since we have been no naps. They have been absolute terrors and we are at our wits. How do we transition him to a toddler bed when he won’t stay in bed?! Night time is hit or miss he was sooo exhausted today he practically fell asleep before hitting the mattress but last night nothing different and he was running back and forth to his sisters room after my husband sat in his room for over 30 min.